Air cleaner



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Patented May 26, 1925. I

UNITED STATES PATENT OFFICE.

MILTON E. CHANDLER AND FRANK C. MOCK, OF CHICAGO, ILLINOIS.

AIR CLEANER.

Application filed September To all wlwm it may concern:

Be it known that we, MILTON l). CHAND- LER and FRANK C. MOCK, citizens of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Air Cleaners, of which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

The invention relates to cleaning devices, and more specifically to dynamic devices for seplarating impurities from gaseous matcr1a I One object of the invention is to improve the functioning of devices of this sort.

Anotherobject is to simplify and cheapen the mechanical construction employed.

Further objects and advantages of the invention will become apparent as the description proceeds.

In the accompanying drawings! Figure 1 is a central section, and Figure 2 a plan view of a device constructed according to our invention.

In the embodiment of the invention selected for illustration, the main shell 10 comprises a cylindrical portion 12, a conical portion 14 and a lower cylindrical portion 16 terminating in an outwardly directed lip 18. A diaphragm or baflie 20;. closes most of the opening through the cylindrical portion 16,

'said diaphragm comprising a cylindrical portion 22 of somewhat smaller diameter than portion 16 and extending somewhat above the same, crowned by a conical cap 24.

A lip 26 extends outwardly from the lower edge of the cylindrical portion 22 and is apertured as at 28.

A lower chamber is defined by another shell havin a conical portion 30, a cylindrical portion 32 and a final cone 34 open at its lower end. The upper edge of cone 30 is headed around lips 18 and 26' as at 36 to unite both shells and the baflie into a single rigid structure.

An ejector is supported on the cylindrical portion 32 of the lower shell, said ejector comprising a lateral passageway 38 and a downwardly directed venturi 40 having its throat substantially in the plane of the open lowerend of cone 34.

At its upper end, the cylindrical portion- 9, 1921( Serial No. 499,468.

quadrilateral depressions, or cup-shaped pits 44. A sheet metal cover 46 has its outer periphery shaped with depressions 48 registering with depressions 44 in lip 42, and carries a centrally located tube 50 joined thereto by a reversely curved bead 52.

A series of combined spacers and inlet guides 54 are formed of flat pieces of-sheet metal bent to form a V having unequal legs both terminating at the outer periphery of the cover and lip 42. The guides 54 are held in place by wide short lugs 55 on their edges lying in pits 44 and 48 along two sides of each pit. The spaces between the guides function as tan entially directed inlet passages, and cert aln of the spaces between the legs of the V house fastening bolts '56 for holding the parts together. The discharge is, in this instance, directed laterally by means of a sheet metal elbow 58, having a lip 60 welded or otherwise suitably secured to head '52. A screen 62 is preferably provided, encircling the annular series of inlet passages between guides 54, to prevent particles of large size from entering the'device.

through the center of the device, making its exit through elbow 58.. Non-gaseous particles of greater specific gravity than the gas passing through the device will be precipitated into the annular ace between the cylindrical portion 16 an the inner cylindrical wall 22, and fall through orifices 28 to be thrust out of the lower chamber by the ejector. When the device is employed in connection with an internal combustion engine, part or all of the exhaust gases are passed through the dejector, and the elbow 58 is connected to the inlet passages of the engine. v

Without further elaboration, the foregoing will so fully explain the gist of our 1nvention, that others may, by applylng current knowledge, readily adapt the same for use under various conditions of service, without eliminating certain features which may properly be said to constitute the essential items of novelty involved. which items are intended to be defined and secured by the following claims.

We claim:

1. In a dynamic cleaner,- a cylindrical chamber, a cover for said chamber spaced to us therefrom to define an annular inlet and the entering flow tangentially, said guides spacing said cover from said chamber, and fastening bolts lying between the walls of certain of said guides out of the airstream to hold the cover in place.

3. In a dynamic cleaner, a cylindrical chamber and a cover having spaced opposed annular lips, registering irregularities of contour in said lips, and guides laid in contact with and held in alignment by said irregularities for directing the incoming flow tangentially.

4. In a dynamic cleaner, a cylindrical chamber and a cover having spaced opposed annular lips, registering irregularities of contour in said lips, and guides engaging said irregularities and positioned to direct the incoming flow tangentially.

5. In a dynamic cleaner, a cyllndrical chamber and a cover havmg annular lips, registering irregularities ofv contour 1n said llps, and spacers engaging said irregular ities to hold both cover and spacers in position.

6. In a dynamic cleaner, a cylindrical chamber, a cover, a series of duplicate-guides having an open V shape spacing said cover from said chamber to definean annular inlet and arranged to direct the incoming flow tangentially, and'tension members housed in said guides for holding said cover in place.

7, In a dynamic cleaner, a cylindrical chamber, a cover, and guides having an open V shape spacing said cover from said chamber to define an annular inlet and 'arranged to direct the incoming flow tangentially.

8. In a dynamic cleaner, a cylindrical chamber, a cover, and guides having an open V shape spacing said cover from said chamber to define an annular inlet.

' 9. A cover for a dynamic cleaner, comprising a flat circular portion embossed around its periphery to register with suitable inlet va-nes, and having a central axial tube drawn integrally therefrom.

10. A cover for a dynamic cleaner, comprising a fiat circular portion embossed around its peripher to register with suitable inlet vanes, an having a central axial tube drawn integrally therefrom in one direction from the plane of the cover, and another tube fastened in lace on said circular portion to prolong sai first mentioned tube in theopposite direction.

In witness whereof, we hereunto subscribe our names'this 7' day of September 1921.

' MILTON E. CHANDLER.

FRANK c. MocK. 

